How to Diagnose and Fix a Lean Condition - Chevy Cruze P0171

[@jasongross8962]

Yo hektor , I almost fell for autozone telling me It was my intake , and valve cover had me ordering $300 worth of parts I had a scanner but didn't know much about fuel trims and how that works , I stumbled on this video and after a new purge the cruze is all set to go . The big part of this is I'mma single dad of three girls 10 , 12 , and 14 and that money I was able to save went a long way at the grocery store at a time I'm out of work due to covid , just wanted you to know your not just teaching people how to fix cars ur helping us keep money in our pockets when money is so tight rn thanks brother I really appreciate ya , and Tom cruze is still running smooth take care , God bless , and peace out

[@scientist100]

Careful, this doesn't happen often, sometimes it could be a combo of damaged intake booth not measured by the MAF.

[@2nickles647]

That's why it's recommended you take it to a shop for proper diagnostic services.

[@Trill89Atwg]

Did yo car have problems starting wen u drive it around

[@jasongross2150]

@@2nickles647 I scanned it with my scanner and had em scan it to see what they said

[@AgWhatsUp]

I named my Cruze Tom as well..

[@themechanicla994]

Is there anything that you can't fix, you're one of the smartest techs i know of here on youtube. keep doing your thing sir, you're time is coming.

[@davidbautista8572]

Agreed 100%

[@jessetaylor9255]

Same here!!! You need your own shop bud!

[@sidharthchand8072]

What about the Maf sensor

[@timel-sheikh3626]

I am a master Chrysler mechanic I can always learn from this guy he is a great tech

[@richardrussell4065]

A true master would never call himself a master 🤣

[@judd0112]

The master has now become the student

[@auck1969]

Man this is a fantastic video that helped me fix my son's Cruze who's in college. Every dollar saved counts. I learn so much from guys like yourself that educate the public but definitely don't have too. I really appreciate your help. Very kind indeed. Take care my friend. 👍

[@gloriavazquez4593]

This video was exactly what my needed! I took my car to the dealership, pep-boys and 4 other mechanics and noo one was able to tell me what was wrong with it! I spent over $1500 taking it from shop to shop, I saw this vid, bought the part for $40 and solved the problem!! You are a god!! 🙏🏼🙏🏼

[@HomieHektor]

Glad it helped 🤝

[@darkknight2260]

@@HomieHektor thank you, I'm starting my own mechanic busy thank you for your insight on problems we over look

[@dancurrier6421]

Hello my car is running very rich I can smell it going up a hill burning up gas like crazy please help

[@eko7293]

I literally took my vauxhall corsa 1.2 3door 2014 to a couple different mechanics regarding lean engine p00171 and none of them had a clue what it was. Thanks to this video I changed the Breather valve all on my own, took me 2 minutes. If it wasn’t for you Hector the mystery in my car wouldn’t have ever been solved!!

[@HomieHektor]

That’s awesome Homie 🙌🏼

[@so4real]

I love his knowledge. I need a regular mechanic like this.

[@michaelvandenavont665]

Have been popping a P0171 code for about a year now. Keep resetting it, which does me for awhile but then it pops up again. Finally decided to search for the issue. Came across NUMEROUS videos regarding this code, but yours is the ONLY one checking the purge valve....and lo and behold, upon checking this before heading to work this morning, my purge valve is sucking air. Have now ordered a replacement and hope to be back without codes soon. Thank you so much for your excellent explanation and descriptive video....I miss the old days of drag racing my easy to work on 72 Chevelle, none of this cheap plastic and emissions crap throughout the car....just a 350 4-bolt that you could sit on top of while working on it. 🙂

[@HomieHektor]

The Good Ole Days…

[@Paul-kt7iw]

Fantastic explanation. I repair appliances for a living so I work on all my own stuff. This video totally explains diagnosing the P0171 well. My 2013 Cruze 1.8L was having this code. Was going to replace the O2 sensor. However after watching this was able to test, sure enough my purge valve wasn’t sealing. Thanks again for the help!!!

[@delsimmonsjr]

Thanks for the video, Hector. This helped me a lot. I was convinced I had an issue with my IAV, and decided to check this instead since the symptoms were similar and it has been impossible to find a IAV outside of the dealership. Fortunately, I saw your video and now my wife can give me back my car.

[@brandongarcia8828]

One of the best mechanical videos I've seen definitely gained a subscriber

[@fuzzman777]

This helped me fix my corsa in the UK. Thanks! Very good diagnosis process. Made sense what I was looking for.

[@HomieHektor]

Kyle Dix that’s awesome bro 👍🏼

[@GrnArrow092]

I had the P0171 code happen to me last year. It was an indication of a vacuum leak, which turned out to be a bad vacuum hose. All that needed to be done was change the vacuum hose and the problem was solved. I'm always happy when the repair is quick and simple.

[@HomieHektor]

GrnArrow sometimes it’s that simple 🤙🏼

[@judd0112]

Yeah but how often does that actually happen? Not too often for me. Maybe it’s just a streak of car nightmares

[@smokingpanda6509]

I just learned more from you then the other 5 videos I watched combined. Amazing job!

[@Volusiaev]

Great diagnostic process. You gotta think of all possibilities.

[@HomieHektor]

Volusia-ev Figure out what’s right with the car, and the wrong will jump out at you 👍🏼

[@dancurrier6421]

hello my 2015 Chevy Cruze 1.4 is running to rich when I pass some one on A hill you can smell it when I press on the gas pedal stinks

[@dancurrier6421]

My purge valve is brand new so that's not the problem I've already checked that probably A 02 sensor going bad or something any ideas would be appreciated

[@davidbishop2913]

You look like a very honest mechanic which is very rear keep up the good work you'll be in business ever

[@eko7293]

I blew into my purge valve and air was flowing through with ease. Best diagnosis ever, even if your car has no problems always good to remove the breather valve and blow into it incase.

[@HomieHektor]

Curry Flurry 👍🏼

[@eko7293]

👌🏻

[@nesfotra]

This tutorial helped me out immensely. Faulty purge valve!

[@joshjonas2856]

Thank you, this was the problem. I have had this idle issue with a po171 code for my 2011 Chevy Cruze for almost two yrs. I did a lot of searching and fixed other issues related to it, but I could never find anything that related the issue this video showed. I'm sure other videos and info is out there, but I never came across it. My purge valve had just a slight suction when there shouldn't have been one. I got a new one and noticed the change right away. It fixed my problem.

[@wyattoneable]

That was an outstanding tutorial Hektor. I enjoyed this one.

[@HomieHektor]

wyatt It was a fun one 🎥💨

[@dancurrier6421]

I already changed that purge valve my check engine light on is for mass air flow sensor and PO 171 bank 1 up stream 02 sensor

[@castledomeknives9395]

Young and very smart.... you're a tech that's gonna go a long ways

[@HomieHektor]

CASTLEDOME KNIVES gracias 🙏🏼

[@angeloya2832]

Thank you with this information I found the hidden vacuum leak all the other mechanics never mention this. Thanks again

[@ArtHilliker]

EXCELLENT video ! Simple and to the point !! Best explanation on YOU TUBE !!! THANK YOU !!!

[@aidangendreau9746]

This is exactly what was wrong with my 2017 Buick Encore! For anyone in Canada, the purge valve is covered under a special extended warranty that outlasts the regular powertrain as GM apparently knows how faulty this is. If you bring it to your dealer and you’re still in that window, chances are it’ll be 100% covered under warranty. Wish I saw this video before though, and could’ve avoided the dealership all together!!

[@johncappelletti3176]

That homie hector just made my new year ! Found my bad purge valve 🤘thanks bro

[@HomieHektor]

2022 🙌🏼

[@hamamalnasry]

Thanks man, it fixed rough idling on my 2014 chevy cruze, I followed your video step by step and it turned out the purge valve is bad. I appreciate it man

[@jonjohnson247]

Homie Hector, I’m so glad to have found you homie. You’re very knowledgeable compared to the wannabes bruh. Yeah you’re definitely going to make it big!

[@HomieHektor]

Appreciate that 🤝

[@elijaha1134]

This is fantastic!! Our Chevy Trax has the same codes, P0171 and P2270, we just got a warranty extension about the purge valve!!!

[@adrpals2324]

Good thing that it was the purge valve that caused that lean condition but in my car it turned out be an O2 sensor going bad. Thank you for the video and good troubleshooting.

[@kayemigz6121]

How many miles did you have on that o2 sensor?

[@TomislavKoren]

This is great. I came to same conclusion on my car before I even got to this video, My deduction was made up on different experiences of others, however I can say that cleaning my purge valve did the trick for me. Therre are a lot of these valves used and you may or may not be lucky. My valve costed 130€ for 1.6 engine while 1.4 engine costed about 15€. Plus, 1.4 engine valve was widely available and my engine' valve was obtainable only by dealer. So I took it off, tested with battery (solenoid was clicking fine) and I cleaned it with brake cleaner. After three runs it was sealing perfect and I returned it to its position. You may want to test it and try to fix it before you buy new one, just my 2 cents.

[@markcapestro5390]

Outstanding video! I just bought one of these scanners the other day and there really aren't many good familiarization videos out there on how to use it. The book is "meh" at best. At work, all we have is Snap-On. Im not real impressed by them... they dont seem to have the functionality that these Autel scanners have (or they are WAAAAYYY overpriced). So, thank you for the great explanation with the car AND the scanner. 👍👍

[@devinp7198]

This video was a huge help bro! Appreciate you 🙏

[@joshuascholar3220]

My engine seems to have a very slight vacuum leak as if it only has a leak occasionally. After watching your video I noticed that most of the noise from my engine (which always seemed loud to me) was clicking from the purge valve. So I just ordered a new one. We'll see of that improves the symptoms.

[@judd0112]

My daughters 2012 is making a popping sound every couple min. Could be considered a clicking. Any resolution?

[@trishalascio7042]

Thank you sooooo much for your videos. You have helped me so much with my 2013 Chevy Cruze. It's been giving me one problem after another. If not for you, I would have had to pay mechanics to fix it and realistically could not afford that right now. So again Thank you, Thank you, Thank you!!!!!

[@stacyn4846]

You do the eork yourself my lady friend I'm excited to try myself once my warranty runs out. Is it hard going the work yourself

[@DangerousBoy88]

You are a genius, cool, awesome and all of the above. Thank you Hektor, you are a life saving champion

[@brandongarcia8828]

Thanks Hektor I just went to the auto parts store and changed the purge valve now no stalling at park and not needing to press the gas when I start the vehicle

[@HomieHektor]

That is what I’m talking about 🙌🏼

[@stevetaylor2445]

Just came across your channel and like it quite a bit. But it should be a rule that every southern tech MUST spend at least 2 years in the north learning the trade-if for nothing else but to know what hat it's like for us.

[@MrGucci247]

Thanks for the video Hector. I had same problem P0171, changed valve gasket and fuel injectors and had same problem smh. Next is to clean/change the MAF sensor.

[@BlueDutchCigarillo420]

I did all of that in my 05 scion and my po171 code is still on🤦‍♂️😭

[@sremik]

​@@BlueDutchCigarillo420did you find the solution

[@mel44ish]

thank you, Hector Homie, by watching your videos, on you tube. it help me a lot, I , Replace the purge valve on 2013 chevy cruze that was smoking a lot. Now my car is like a new one. code P0171 . now is clear. thank you and God bless. now i, HAVE A MECHANIC IN YOU TUBE.

[@HomieHektor]

🙏🏼 gracias 👍🏼

[@lizbennett8120]

YES! THANK YOU SO MUCH! I've been chasing my tail for months with this issue. THANK YOUUUUUUUU!!!

[@stacyn4846]

I think this is my issue too ill find out this week fingers crossed 🤞

[@dreweslarr]

Great video! Nothing wrong what so ever with it. The only comment I have is that when you said the O2 sensor readings were a dead give away that its a vacuum leak, some extra info on why that is would be great. Further teaching the masses on how to diagnose. Again, not necessary and great video regardless. :)

[@S1RZ33]

Great video bro!! Got a P0171 code, gonna take a look this weekend. Thank you, god bless 🙏🏻

[@tyrondeau8621]

Nice job. Thanks for sharing the process. I'm diagnosing a 2015 Captiva.

[@jeffreysmall5259]

Thanks Hector I fixed my friends car.Nice thanks sharing with viewers. Love it and utube..keep it coming..

[@ODWEEZE]

You just helped save me a lot of money finally found the issue I was having on my 2016 Cruz. I appreciate the video!

[@Trill89Atwg]

Wat problems u was having

[@jacoboutaleb5211]

Outstanding! Awesome ! Great job. Keep it up and you will be the best mechanic out there. I am impressed. Good-luck. Good tutorial and checking ratios and measurements with scanner before after taking a decision to change parts

[@haywardsautomotive6156]

Nice diagnosis & repair Hector.

[@HomieHektor]

Hayward's Automotive Gracias Homie 👍🏼

[@johnnalley23]

And just like that, you helped me trouble shoot the problem with my GFs cruze. Thanks!

[@slyder65]

Very informative video! Currently dealing with some issues with my 2014 chevy cruze 1.8 l4. Jerking a little when in idle along with the rpm dropping when i’m parked. I bought a new valve gasket and i’ll get it switched out if it’s needs to. But first i’m gonna need to find out what codes it sends out. Thank you!

[@charlieyuson2119]

same problem of my car chevy cruze 2011 engine check P0171 but the dealer tech said its turbo replacement is it possible they did not do a smoke test they did not explained its a vaccum leak they said its a fuel trim and there diagnose is turbo replacement last month they change my cat converter and oil fan and its cost me 2 thousan dollars it seems i cannot trust them anymore and its a big help watching your vedio i learn a lot thanks

[@456of789]

Great tutorial. Very informative and professional. Thank you.

[@CorazonDmelon]

This is how tutorials should be done thank you!

[@mariop135]

Very useful vid. I changed the purge valve and it fix the problem on my 2015 Trax. Thanks a lot 👍👍keep making more vids.

[@HomieHektor]

Mario P Hell yeah 🙌🏼 that’s awesome, Thanks for subscribing 👊🏼

[@michaelbryant1046]

Excellent info! Thanks for the purge test vs valve cover replacement.

[@peterodriguez6408]

Nice job!! Ruled out all possibilities and verified... awesome

[@chrisjacobs3018]

Hey man, your video helped me out ! Thank you very much for your professional video! most appreciated!

[@aditi1112]

Great video, thank you! one question though - if testing the purge valve only takes a minute, wouldn't it make sense to start your investigation with it?

[@1mrsleepy1]

Good shit homie, very articulated and spot on with the execution. Keep on conveying that needed information homes.

[@danielrosales9136]

wonderful explanation! I have a question regarding this exact vehicle. My Cruze has a p0172, I've changed everything that could possibly be causing the code. I've replaced the up stream o2, MAF, Spark plugs, and one clogged injector and the long-term fuel trim continues to operate at -35. Any suggestions on what it could be?

[@jamedkeo]

Brake Booster?

[@1Patient]

Good diagnosis and repair job my friend 👍🏻

[@TerryB751]

I should have had you analyze my 2015 Malibu 2.5L, 4-cylinder with the P0171 code. Engine sounds fine, check engine light on. Took it to the dealer, they ran their tests, couldn't find a fix after 5 hours, and didn't charge me but reset the light. Half a day later, the light comes on again, I decide to take it Tires Plus and let them have had it. A few hours later, they just confirmed what the dealership said, couldn't find a fix, and didn't charge me and reset the light. Half a day later, light comes on again. That's where I am now. Can't afford to just waste time on this. Engine still sounds fine.

[@HomieHektor]

Terry B There’s only 2 things that can go wrong 1) Too much air or 2) Not enough fuel. Just gotta find out which one it is and where the problem is.

[@TerryB751]

@@HomieHektor Yeah, Tires Plus gave me their list of P0171 potential systems and one was "Fuel Quality", I put in some gas from a different company and some time later the light went off for a few hours, then back on. Added some fuel injector cleaner and more gas and the light stayed off. It's been quite a while now and the check engine light is still off.

[@davelockhart5250]

Thank you Hector. Simple perfect instructional video. Keep up the good work I love it

[@66mymouse]

Right on Hektor!! I appreciate your videos. Your vid’s are so helpful!! Single dad and I work on all our vehicles myself to save that dollar. Keep ‘em coming!! Bless you and stay safe bro.

[@HomieHektor]

I’m trying 🤝 glad they’ve been helping out.

[@PICK2MONKE]

Thank you. I have this issue as I'm watching your video. Well done.

[@lightworrior4401]

Good video and keep on doing more, and may the Lord bless you.

[@Justmi2cents]

Thank you..I enjoyed the video. This is my problem. I have ordered the part. I also had code p0496 along with p0171 and p0300. So we will see!

[@HomieHektor]

Anthony Louis sounds like you’re onto something 👍🏼

[@CJ3722]

I have the exacts same codes, Did u solved the problem?

[@Justmi2cents]

C Jr Not yet. I bought a new car and kept this as well I don’t have a garage right now and will be back on this when warm weather gets here. I would love to know if you make any progress! Good luck and please keep me posted.

[@judd0112]

@@Justmi2cents me too same codes ans a few more

[@orlandoclaros6945]

Yo , thanks 🙏 u saved my day , I did head gasket on it but I keep getting those codes couldn't find leaks. THANKS

[@waltermassey1146]

I love your intro! Keep up the good work

[@ironreign9412]

Good stuff amigo! my daughter's 13 cruze is actin up so she just dropped it off and took one of my vehicles. SUB'd

[@StringsTV2024]

Thanks bro. you just saved me alot of money.

[@HomieHektor]

Nice 👍🏼 Feel free to use the gratitude link in the description. Glad it helped 🙌🏼

[@jessetaylor9255]

Very thorough and easy to follow. You do amazing work my man! Thank you for passing on your knowledge!

[@miketinsley9712]

L

[@ramvanbobby3889]

Your a good little mechanico

[@mooklocklear1182]

Excellent job

[@javierpacheco4566]

Awesome video! Hector, thank you for bringing your knowledge in to the internet!

[@ricksmith9422]

Your the man. Thanks boss keep it up. Wish I found ya sooner!

[@jamesbillet8954]

Great job Hector😊😊😊😊. Thanks so much for your knowledge and sharing😊😊😊! Wishing you and yours' a very happy and safe holiday. 😊😊😊. Thanks again.

[@HomieHektor]

Gracias, likewise 🤝

[@rdmineer1]

I had this problem, intermittent then steady. The system thought it wasn't getting enough air and leaned the fuel delivery. Faulty MAF sensor was the cause. Get the Bosch from Rockauto, $47. It's at least $113 locally. Power increased noticable but fuel economy also improved.

[@KirbyDTrim]

Very very good explanations! Thank ya.

[@chepa424]

K hay compa Hector se te extraña man como estas saludos desde chicago y gracias por compartir tus conocimientos God bless mi amigaso Solo para compartir 07 Buick LaCrosse 3.8 sele cambió maf sensor 02 sensors smoke test y el mendigo código seguia allí P0171 gracias a este vídeo logre k se fuera el mendigo código

[@HomieHektor]

🤝

[@pedroneil2054]

Hector you are a smart dude thanks for sharing

[@rodolfogarza8947]

great vid, I am having lean issues and this is such good information .

[@rottmanthan]

the pcv is more of an issue on the 1.4l, in general the 1.4 has more issues anyway. but that purge valve is common on both engines, i have the 1.8l sonic and i have a new purge valve in the glove box just in case.

[@novawagon559]

Great video bro awesome tech techniques very good job man keep doing what your doing ✊🏼👍🏼

[@HunterA61]

You my friend are a legend

[@HomieHektor]

Gracias 🤝

[@jimfurr6420]

The only thing he did not explain, (and I don't understand) is, how a vacuum leak would BLOW OUT Smoke rather than suck it in -??? We used to use throttle body cleaner, or something like it, and spray an area to see if engine Revs Up! (can be dangerous : )

[@showmethemoney-4597]

Have a 2014 Chevy Cruze 1.4L have already replaced about 12 parts since October and it’s still not running right has a rough idle and a squeal/whistle have replaced the valve cover and codes still show lean even after being cleared they come back on after a day. Fingers crossed it’s this and not anything else $1200+ in repairs cost me $75 to do the valve cover and fixed the stalling issue

[@farley6003]

Great diagnosis and explanation

[@yadirnevarez3651]

Awesome troubleshooting skills. Thanks for the help.

[@chutepena692]

Beautiful video and explanation, hope you can awnser my cuestion, this purge valve can gives a po171 and po174? Or just po171? Hope you doing well and awnser teacher

[@derrickmcdaniel6105]

Great video I have a 2013 Cruze with codes P0171 P1101 checked the purge valve the suction is not loud but you can feel it.

[@jxcorona13]

My 2014 is throwing the same codes, hence why I’m here on this video lol Did you find out what the issue was?

[@derrickmcdaniel6105]

@@jxcorona13 I did some testing & cleaning of other components it seems that my purge valve is on it's way out. I let you know what happens.

[@derrickmcdaniel6105]

@@jxcorona13 It was the purge valve. Thank you for making the video you saved me from having to go to a dump water repair shop in this town I live in.

[@jxcorona13]

@@derrickmcdaniel6105 Nice, fairly easy fix. I ruled out the purge valve on mine. I need to check the check valve if it’s missing to determine if I need to replace both manifold and valve cover/PCV or just PCV.

[@uver7547]

Very helpful. Appreciate you my guy

[@Truckingtowardsfreedom]

Nice video homie. Gotta check that valve on my wife’s Chevy trax.

[@petemedina8446]

Good information though does this apply to the 1.4 turbo engine its the same year?

[@paulantosy-ott3191]

The 1.4 system is a little more complex, but the same basic principles apply. A guy by the name of Dre Dan on youtube has a very good video on boost leak testing the 1.4L and has good videos on the PCV system. He also has write ups on the CruzeTalks forums

[@burntxtoastt]

I’m a new tech at my first shop and I got this same problem on a 2017 Cruze. It only toke me about 15 minutes to found out it was the purge valve. I hate doing diagnostic because I don’t have any experience yet.

[@mcicerone144]

I inspected the valve exactly as shown on the video (proved to be OK as I could not blow any air through). After reconnecting everything, my car will not start at all. Confirmed it is not an issue with the battery. Any help you can offer is greatly appreciated!

[@rodrigo216]

Were you able to start your car again?

[@YoBoyJoeBoogie]

Firestone is missing you!!! but I bet their making all the techs subscribe to your channel. "On The Low"

[@cclawncare1]

You are awesome mechanic! Soooo well explained and demonstrated video. Thank you, thank you, thank you!

[@bigbrick1909]

Great job you know your craft

[@Fiel1931]

I have a p0171 code but on a 2.4L malbu. I replaced the purge valve solenoid and the O2 sensor as well as the spark plugs. Then, today I noticed a crack in the exhaust manifold. Maybe a dumb question, but do you think that could cause the P0171 and the P0300 codes? Trying to figure this out without dropping a grand in shop costs.

[@jlond2766]

Sweet, fixed gf Cruze. Thanks!